The program scans your disk and displays its content as a sector diagram where the biggest files and folders at once become obvious. To drill down to a folder, just click on a segment. To bubble up, click in the center. Move the mouse over the diagram and see the name and path of each file, and enclosed files (if any). Hit Space to quickly preview file content, without launching another application. In this way, walk around your disk and drag-and-drop all unneeded files into the "collector". more...

The program scans your disk and displays its content as a sector diagram where the biggest files and folders at once become obvious. To drill down to a folder, just click on a segment. To bubble up, click in the center. Move the mouse over the diagram and see the name and path of each file, and enclosed files (if any). Hit Space to quickly preview file content, without launching another application. In this way, walk around your disk and drag-and-drop all unneeded files into the "collector". Expand the collector to check its contents. When done, clean it up with a single click.

Version 3.0.3.1:

Quick fix: Scan as Admin.

Smarter resizing of the app window and layout.

Added Spanish localization.

Added Polish localization.

UI tweaks and bug fixes.

DaisyDisk is one of those apps that you'll rarely ever need, but once you do need it, you'll be glad you have it. Yes, there are other alternatives out there, but none of them are nearly as well designed. And, best of all, the trial version isn't crippled. If you just need to use it once, you can download it and use it and not pay a penny. Which is exactly what I did. And then I realized how awesome it is that the devs actually allow you to do that and went ahead and bought a license just because. :)